Many Splatoon players were running into problems last week when a hacked Octoling surfaced online. Encountering this hacker triggered a glitch that could ruin your save data, and other hackers were spotted after the initial occurrence. If you’re worried about encountering this problem in the future, we’ve got good news, and if you were thinking about trying to hack Splatoon yourself, you might want to hold off.
According to Nintendo World Report, it appears that Nintendo is issuing bans at the system level for those caught using unreleased weapons or characters. Hopefully this will prevent players from having their save files ruined in the future.
Source: Nintendo World Report